Aputure DEC LensRegain Wireless Remote Follow Focus Lens Adapter with Focal Reducer 0.75&times; Focus Reducing for Canon EF-mount Lenses to MFT Mount Cameras Designed for MFT Mount Cameras and for Canon EF Lenses. Magnification of 0.75x. Increase an Additional Stop of Light, T-Stop Display. 4 Element 4 Group Optical Element, Seven Layers Anti-Reflective Coatings. Enhanced Performance on MTF.